You must first create several line graphs, then shade each portion to denote the component of each data from the total while creating a compound line graph. It's an evolution of the basic line graph, which depicts the overall data proportion as well as the various layers that bring up the data. This type of chart is used when data can be divided into different categories. If you want to compare the population of full-time and part-time students in a school for a few years, for example, you can use a multiple-line graph like the one below. The independent variable is typically plotted on the horizontal axis, whereas the two or more dependent variables are typically marked on the vertical axis. It's used to display the changes in two or more variables over the same period. This graph depicts an individual's annual earnings over five years.Ī multiple line graph is a line graph with two or more lines plotted on it. In the example below, Earnings is the dependent variable while Year is the independent variable. Time is commonly the independent variable, although other variables may also be used. One of these variables is independent, while the other is a dependent variable. It depicts the relationship between two variables. Depending on the form of data being analyzed, each of these graph forms has different applications.Ī single-line graph is referred to as a simple line graph. In statistics, there are three types of line graphs: simple line graphs, multiple line graphs, and compound line graphs.
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